package com.ny.test;
public class BankPay implements com.ny.test.Pay {
    double m = 100;
    @Override
    public void pay(double money) {
        if(m>money){
            System.out.println("银行卡支付"+money);
            m = m - money;
            System.out.println("你的余额为："+m);
        }
        else{
            System.out.println("你的余额不足");
        }
    }
}
